None.

There is very mild slapstick.

Donald Duck crashes his sled into a boulder.

Donald Duck hits his nephews with his snowballs turning them into bowling pins and bowls them down with a snow bowling ball.

Donald Duck launches his ice missile at the flag pole, it causes the flagpole to split into 3 parts spanking his 3 nephews Huey, Dewey and Louie.

The three nephews fight back by dropping snow missiles with mousetraps on Donalds head and butt getting mouse traps stuck on Donalds tail, hands and beak.

Donald Ducks head gets hit by a snowball.

None.

None.

This is perfectly fine for all ages. Although the scene with Donald Duck crashing his sled into a boulder may be a little scary for little kids. Also another scene with the ice ship melting causing Donald Duck to fall in the ice lake and getting frozen and stuck in the palm tree prison of ice may be a little scary for little kids.